William c



(No Model.)

W. O. BAKER. HEATING APPARATUS FOR RAILWAY CARS.

Pa cented Oct. 1, 1889;

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UNITED STATES PATENT OFFICE.

WILLIAM C. BAKER, OF NEYV YORK, N. Y., ASSIGNOR TO THE BAKER HEATER COMPANY, OF SAME PLACE.

SPECIFICATION forming part of Letters Patent No. 411,915, dated October 1, 1889.

Application filed December 10, 1888. Serial No. 293,120, (No model.)

To aZZ whom it may concern: tance below the closed upper end of the Be it known that I, \VILLIAM O. BAKER, of pipe I. the city-and Stateof New York, have invented Upon the under side of the head H are an Improvement in Heating Apparatus for screw-sockets 3 and 4:, with holes opening 5 Railway-Cars, of which the following is a. through the head II into the pipe I at oppo- 5 specification. site sides of the partition K, and there is a The object of this invention is to adapt the steam-pipe M and cook 6 connecting with P heating apparatus usually known as the the socket 3, and a discl'iarge-pipe N con- Baker Car Heater to steam supplied from nected with the socket at, and this dischargethe locomotive, so that the car maybe heated pipe N may be provided with an air-valve or in the ordinary manner when detached from a blow-01f valve or trap, or it may return into the locomotive, or it may be heated by either the main steam-pipe P, that runs longitudilive or exhaust steam from the locomotive nally of the car and is connected at the end led through pipes along the train. of the train with the locomotive, so thatsteam 15 In the drawings, Figure 1 is a partial elefrom the boiler or from the exhaust can be ration of the expansion-vessel and heating passed into this pipe P, and such steam travapparatus. Fig. 2 is a section in larger size els from end to end of the train and passes of the rising pipe, and Fig. is a sectional by the pipe M into the tube I of the heating plan at the line at 4120f Fig. 2. apparatus in each car, and the steam dis- 20 In the heating apparatus largely made use places the air within the pipe I, driving the of in railway-ears a system of heating-pipes same up and over the top of the partition K passes along and around the car and contains and down and out through the pipe N, and water that is heated and circulated, such waany water of condensation can run out from ter usually being saturated with salt. At A the pipe N, it being preferable to provide a 2 5 and B, I have represented the end portions small notch in the lower end of the partition of these heating-pipes, and in the usual Baker K, so that the water of condensation within heater 1) II there is a coil of pipe 0' within the pipe I and at each side of the partition K the fire-chamber, to which the pipe B is concan pass away by this pipe N. nected, and the upper end of this coil passes It will now be apparent that when the car 30 out by the branch B to the rising pipe 0, is not connected with the locomotive a fire that leads to the expansion-vessel D, and can be built within the heater, and that the there is a downward circulating-pipe E, united water will be circulated through the heating to the end A of the heating-pipes. apparatus of the car in the ordinary manner, I do not change the heating apparatus and that steam heat may be used in addition 35 heretofore made use of, except by making to'the heat from the heater, or the steam heat the ascending pipe G considerably larger in alone may be made use of, because the heat diameter than heretofore usual, and upon the received by the pipe I from the steam causes bottom end of such pipe 0, I screw the head a rapid circulation of the water upwardly II, and within this head 11 is a second socket Within the pipe Cand around the pipe I, and

4 and screw-thread receiving the lower end of in so doing the entire column of water fill- ,the vertical pipe I, and this vertical pipe I ing the heating-pipes is set in motion, and extends up into or near the expansion-vessel I find in practice that it is very important D,and the upper end thereof is closed steamthat the heat be applied to the vertical or tight, preferably by welding the metal to rising column leading to the expansion-ves- 45 gether at the upper end of such pipe I, and I sel, otherwise there is not sufficient differ- 5 insert into this pipe I a vertical partition K, ence of weight in the rising column G and the preferably of galvanized sheet-iron, and the descending column E to produce a rapid cirbottom end of this partition K rests against culation and overcome the resistance consethe inner surface of the head II, and the upquent upon the bends of the heating-pipe 50 per end of the partition is at a suitable disand the depression of such pipe or coil where the same passes down to the floor or below the floor of the car.

I do not in this application lay claim to the two sources of heat applied to the water circulating through the heating-pipes within the car, as the same is set forth in previous applications made by me. In consequence of the heating-pipe I being closed at the upper end and connected to the other parts at its lower end only, such pipe is free to expand and contract by changes of temperature without any risk of injury or leakage at any place, thus avoiding diiiiculties heretofore experienced in apparatus of this general character.

In some instances where steam heat has been applied to the circulating water in the heating-pipes in addition to or separate from fire heat applied to a coil in a heater difficulty has arisen from the use of cocks or valves that required to be manipulated by hand to direct the circulating water, or else the steam-heating device occupied valuable space in the car, or else it became necessary to take the heater as now in general use apart, at the risk of such injuries as would render an entirely new heater necessary. My steamheating apparatus being applied above the coil and fire-chamber, and in a part of the car where there is usually ample room, does not necessitate any change, except the removal of the ordinary rising pipe, which is easily accessible, and the substitution of my steam-heater in place thereof, and the circulating water is compelled topass in the usual manner through all the other pipes, Whether acted upon by heat from the steam or fire, or both, and the heater itself, if already in the car, remains undisturbed.

I claim as my invention 1. The combination, with the expansionvessel D, pipe E, and the heating-pipes within the car through which the Water circulates,

of the vertical pipe 0 below the expansion- Q Vessel, the tube I within the pipe 0, the head H, that closes the lower end of the pipe C and to which the pipe I is connected, the pipe M, for supplying steam, and the pipe N, for the water of condensation, and a partition within the pipe I for promoting the circulation of the steam within such pipe I, substantially as set forth.

2. The expansion-vessel D, descending pipe E, heating-pipes within the car, the end A of Which is connected to the pipe E, a heater having a fire-chamber, and a coil of pipe within the fire-chamber, the lower end of which is connected to the pipe B of the heating-pipe, a vertical pipe 0, connected at its upper end to the expansion-vessel and at the lower part to the upper end of the 0011 Within the heater, the head H, for closing the lower end of the pipe 0, the vertical steam-heating pipe I within the pipe 0 and connected at its lower end to the head H, and the pipes M and N, connected to such head and opening into the pipe I for supplying steam to such pipe I and taking off the water of condensation, substantially as set forth.

3. The combination, in a car-heating apiparatus, of the heating-coil within the firechamber of the heater, an ascending pipe 0, expansion drum, descending pipe E, and

heating-pipes within the car for the circu- :lating hot water, and a steam-heating pipe within the vertical pipe 0 for imparting heat to the Water within such pipe 0 and causing the same to circulate up into the expansion-vessel and thence through the heating-pipes of the car, .substantially as set forth.

4. The combination, with the heater and the coil within the fire-chamber thereof, the

f heatingpipes within the car for circulating hot water, and an elevated expansion-vessel, of a rising pipe for the circulatingwater ex- T tending from the upper end of the coil to the expansion -vessel, and a steam -supply pipe and heat-er acting upon the Water in the rising pipe and entirely above the coil in the fire-chamber of the heater, substantially as specified.

Signed by me this 8th day of December, 1888.

IVILLIAM (J. BAKER.

Witnesses:

GEO. T. PINCKNEY, WILLIAM G. Morr. 

